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Equilibrium Of A Body
Test Description: Equilibrium is important in our daily life .we are going to find out the condition of equilibrium of a solid acted upon by two forces
Instructions: Answer all questions to get your test result.
1) The force is characterized by
A
All choices
B
Point of application
C
Line of action and direction
D
Magnitude
2) Weight of a body is
A
Vertically downward
B
Acting from a distance
C
Gravitational force
D
All choices
3) One of these forces is contact force
A
weight
B
Frictiona; force
C
Electric force
D
Magnetic force
4) The weight of body on moon is
A
One sixth (1/6) its weight on earth
B
Equal to its weight on earth
C
None of the choices
D
Equal to its mass
5) When a body is in equilibrium under the action of the forces , These two forces have:
A
Only same line of action
B
Only opposite directions
C
All choices
D
Only same magnitude
6) One of the following isn’t principle of interaction
A
Same direction
B
All choices
C
Same magnitude
D
Same line of action
7) The tension of a spring is :
A
Proportional to the elongation of the spring
B
None of the choices
C
Inversely proportional to the elongational
D
Equals to the mass of body
8) Hook’s law is written as :
A
T = m /g
B
T = w / g
C
T = K / ∆l
D
T = K ∆l
9) K represents in Hook’s law
A
elongation
B
Stffness constant
C
Tension
D
Length of spring
10) 1 N/cm is equivalent to
A
10 N / m
B
100 N / m
C
None of the choices
D
1 N/m
*select an answer for all questions
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